Standard Library · expr

class Field

A member access rooted at a lambda parameter, such as u.address.city.

since 0.1.0-alpha.1linuxwindowswasm

Overview

A Field records only the member path; it does not say which lambda parameter the path starts from.

expr::Field f = expr::Field(["address", "city"]);
console.writeln(f.path[0] + "." + f.path[1]);

address.city

new(Array<string> p)

Create a field node.

expr::Field f = expr::Field(["user", "address", "city"]);
console.writeln(f.path.length());
console.writeln(f.path[2]);

3
city

Array<string> path

The member names from the parameter outward, so u.address.city is ["address", "city"].